Actually, I really do agree with your equation. So more effort can overcome some lack of talent, or talent can overcome lack of time, etc. And like you mentio

Actually, I really do agree with your equation. So more effort can overcome some lack of talent, or talent can overcome lack of time, etc. And like you mentioned, the top post said most of us will never sing like Josh Groban ... so true. Same with athletics. Same with science/math/computers. Some people just don't have the same talents, some effort can overcome that, but it's not a cure-all if, say, you just simply can't sing.